Structural transitions in methane plus ethane gas hydrates - Part II: modeling beyond incipient conditions

被引：65

作者：

Ballard, AL ^{[1
]}

Sloan, ED ^{[1
]}

机构：

[1] Colorado Sch Mines, Ctr Hydrate Res, Dept Chem Engn, Golden, CO 80401 USA

来源：

CHEMICAL ENGINEERING SCIENCE | 2000年 / 55卷 / 23期

关键词：

hydrate; methane; ethane; modeling; phase equilibria; structure;

D O I：

10.1016/S0009-2509(00)00163-9

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Hydrate structural transitions have recently been reported in the literature for the methane + ethane + water system. In this work, hydrate phase diagrams have been generated using regressed parameters for the van der Waals and Platteeuw statistical thermodynamic model. We will discuss the effect of temperature, pressure, and gas composition on the structural transition point. Predictions at and above incipient hydrate formation conditions reveal unusual phenomena such as minimum pressure azeotropes and solid-solid phase equilibria. (C) 2000 Elsevier Science Ltd. All rights reserved.

引用

页码：5773 / 5782

页数：10

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